Check each of the following statements and state whether it\'s true or false: a)
ID: 3325676 • Letter: C
Question
Check each of the following statements and state whether it's true or false:
a) If you toss a quarter 18 times, then the probability that 15 are tail and 3 are head of those 18 times is given by the binomial distribution formula and p=.003:----------
b) The Within Group Variance in analysis of variance is analogus to the Pooled Variance in the t-test:---------
c)The Tukey's HSD test is used to detect where the significant differences occur if the overall F ratio was significant at the .05 level:-----------
Explanation / Answer
a)
When we toss a quarter probability of geeting a head is p = 1/2 = 0.5
Let X is a random variable shows the number of tosses out of 18. Here X has binomial distribution with parameters n=18 and p=0.50.
Hence, given statement is false.
b)
Yes it is true.
c)
Tukey's HSD are post hoc test. We need to run post hoc test is F ratio is signficant at the .05 level. That is if F ration shows that there is diiference between the populations mean.
Hence, given statement is true.